| Primary satellite | Secondary satellite |
| Name | Cosmos 1908 Rocket | RESURS 01 DEB |
| Spacetrack catalog number | 18749 | 46896 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 14 22:10 | 2021 Jan 14 02:13 |
| Time of closest approach (UTC) | 2020 Dec 05 17:55:22.071 |
| Minimum distance | 67.842 km |
| Height difference | -2.983 km |
| Relative speed | 14.989 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 80.3°S, 163.5°E |
| Height | 660 km |
|